BOSTON — Until Sunday, Evan Fournier, Aaron Gordon, Mario Hezonja and Elfrid Payton had gone their entire NBA careers without winning a game in Boston. Their defeats at TD Garden ran the gamut, ranging from a 30-point loss last January to a one-point heartbreaker last March. To put it simply: The arena has been a house of horrors for them and their team.

Those frustrations have ended.

Energized by sharp off-the-ball movement on offense, Payton’s scoring and the activity of reserve center Khem Birch, the Magic built a 19-point lead, survived an awful fourth quarter and stunned the Celtics 103-95 on Sunday.

The victory snapped a 14-game regular-season losing streak in Boston.

“We got humiliated a few times here, so it feels really good to win here,” Fournier said. “It’s a weird feeling.”

Forgive Fournier for feeling slightly disoriented by the victory because the result felt unexpected on multiple levels. The Celtics lead the Eastern Conference standings and opened Sunday with the league’s best field-goal percentage defense and the league’s best defensive rating. The Magic, on the other hand, started the day in a three-way tie for the league’s worst record. The Celtics also dominated the Magic in the teams’ prior two games this season.

In this postgame video, Evan Fournier discusses the Orlando Magic's 103-95 win over the Boston Celtics.

In this postgame video, Evan Fournier discusses the Orlando Magic's 103-95 win over the Boston Celtics.

Orlando typically struggles against defenses like Boston’s — a defense with tall, long-armed, agile players who switch on screens. But this time, Orlando gave itself a chance by cutting sharply and by making extra passes.

A play early in the second quarter illustrated the Magic’s approach. Shelvin Mack received an inbounds pass in the Celtics’ defensive end, and D.J. Augustin, stationed near the edge of the Celtics’ midcourt logo, saw a seam down the center of the lane. Augustin sprinted into the lane, received a bounce pass and scored on a reverse layup over Daniel Theis.

“We don’t have an MVP-caliber player on this team,” Magic coach Frank Vogel said. “It’s got to be a team approach, and guys are doing a great job.”

Orlando outscored Boston 32-12 during the third quarter and built a 90-71 lead on 58 percent shooting.

In this postgame video, Elfrid Payton discusses the Orlando Magic's 103-95 win over the Boston Celtics.

In this postgame video, Elfrid Payton discusses the Orlando Magic's 103-95 win over the Boston Celtics.

“You can’t underestimate any team,” Celtics big man Al Horford said. “I don’t think that we necessarily did, but we need to have that sense of urgency like we started the game and be able to hold that throughout the game.”

The Magic (14-32) led the Celtics (34-13) for the final 22 minutes but saw their lead erode during the fourth quarter.

The Magic made only one of their first 16 shot attempts of the period, and Kyrie Irving whittled down the Celtics’ deficit to 94-86 by making a pair of free throws with 4:16 to play.

On the Magic’s next trip down the court, Payton drained a stepback jumper over Horford from 19 feet.

A short while later, Birch collected an offensive rebound off a miss by Mack and scored on a layup. That basket put Orlando ahead 100-91 with 1:21 to play.

In this postgame video, Khem Birch discusses the Orlando Magic's 103-95 win over the Boston Celtics.

In this postgame video, Khem Birch discusses the Orlando Magic's 103-95 win over the Boston Celtics.

Birch, a rookie who has spent much of the season in the G League, played the final seven minutes, and he finished with four points, seven rebounds and two blocks.

“That’s what I do: I play with a lot of energy,” Birch said.

The Magic hadn’t won a regular-season game in Boston since Feb. 7, 2010. That afternoon, the Magic employed a starting lineup of Jameer Nelson, Vince Carter, Matt Barnes, Rashard Lewis and Dwight Howard.

None of the Magic’s starters Sunday — Payton, Fournier, Jonathon Simmons, Aaron Gordon and Bismack Biyombo — were even in the NBA yet.

“We’re scratching for wins anywhere at this point,” said Payton, who scored a team-high 22 points.

Gordon said: “It feels good to just get this win. We just want to go and get the next one, too.”

jrobbins@orlandosentinel.com. Read his blog at OrlandoSentinel.com/magicblog and follow him on Twitter at @JoshuaBRobbins.

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In this postgame video, Mario Hezonja discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

In this postgame video, Mario Hezonja discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

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In this postgame video, Mario Hezonja discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

In this postgame video, Mario Hezonja discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

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In this postgame video, Evan Fournier discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

In this postgame video, Evan Fournier discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

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In this postgame video, Shelvin Mack discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

In this postgame video, Shelvin Mack discusses the Orlando Magic's 105-101 loss to the Chicago Bulls.

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The Magic sent point guard Elfrid Payton to the Suns for a second-round pick as the NBA trading deadline neared on Thursday.

The Magic sent point guard Elfrid Payton to the Suns for a second-round pick as the NBA trading deadline neared on Thursday.